Home / 6,416.45-9,625.95-3,129.60

Finding the Fourth Proportional to 6,416.45, 9,625.95 and 3,129.60

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Solution

The fourth proportional to 6,416.45, 9,625.95 and 3,129.60 is: 4,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.45 : 9,625.95 = 3,129.60 : x
  2. Step 2: Convert to fraction form
    6,416.45/9,625.95 = 3,129.60/x
  3. Step 3: Cross multiply
    6,416.45x = 9,625.95 × 3,129.60
  4. Step 4: Simplify right side
    6,416.45x = 30,125,357.47
  5. Step 5: Solve for x
    x = 30,125,357.47/6,416.45
  6. Step 6: Final answer
    x = 4,695.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.